I have a T10s. The life of my two batteries hardly takes 12 hours. Thes are Nimh 650 and 750 mAh. Initially I will notice that the life display is full but once a ring or answer a call it drastically goes down and shows low battery sign. When I switch it on, it again appears as if the life is full. What can I do. You may answeer me privatelty at ezenengey@masaf.org